CN108101355B - Mother core rod heat preservation degasification equipment of productivity expansion - Google Patents
Mother core rod heat preservation degasification equipment of productivity expansion Download PDFInfo
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- CN108101355B CN108101355B CN201711481478.0A CN201711481478A CN108101355B CN 108101355 B CN108101355 B CN 108101355B CN 201711481478 A CN201711481478 A CN 201711481478A CN 108101355 B CN108101355 B CN 108101355B
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- 238000007872 degassing Methods 0.000 title claims abstract description 44
- 238000004321 preservation Methods 0.000 title claims abstract description 21
- 239000000725 suspension Substances 0.000 claims abstract description 50
- 238000010438 heat treatment Methods 0.000 claims abstract description 25
- 230000007246 mechanism Effects 0.000 claims abstract description 20
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 52
- 239000010453 quartz Substances 0.000 claims description 51
- 230000009467 reduction Effects 0.000 claims description 7
- 230000001681 protective effect Effects 0.000 claims description 3
- 238000009434 installation Methods 0.000 claims 2
- 238000004519 manufacturing process Methods 0.000 abstract description 13
- 238000009413 insulation Methods 0.000 description 16
- 230000001105 regulatory effect Effects 0.000 description 15
- 238000000034 method Methods 0.000 description 8
- 230000008569 process Effects 0.000 description 7
- 239000011449 brick Substances 0.000 description 4
- 239000013307 optical fiber Substances 0.000 description 3
- 238000005265 energy consumption Methods 0.000 description 2
- 239000010410 layer Substances 0.000 description 2
- 230000000007 visual effect Effects 0.000 description 2
- 239000002253 acid Substances 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 1
- 238000000137 annealing Methods 0.000 description 1
- 230000001174 ascending effect Effects 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 238000005253 cladding Methods 0.000 description 1
- 230000003749 cleanliness Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 239000012792 core layer Substances 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000002657 fibrous material Substances 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 238000005245 sintering Methods 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 230000008646 thermal stress Effects 0.000 description 1
- 238000006257 total synthesis reaction Methods 0.000 description 1
- 239000002966 varnish Substances 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Classifications
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- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B37/00—Manufacture or treatment of flakes, fibres, or filaments from softened glass, minerals, or slags
- C03B37/01—Manufacture of glass fibres or filaments
- C03B37/012—Manufacture of preforms for drawing fibres or filaments
- C03B37/014—Manufacture of preforms for drawing fibres or filaments made entirely or partially by chemical means, e.g. vapour phase deposition of bulk porous glass either by outside vapour deposition [OVD], or by outside vapour phase oxidation [OVPO] or by vapour axial deposition [VAD]
- C03B37/018—Manufacture of preforms for drawing fibres or filaments made entirely or partially by chemical means, e.g. vapour phase deposition of bulk porous glass either by outside vapour deposition [OVD], or by outside vapour phase oxidation [OVPO] or by vapour axial deposition [VAD] by glass deposition on a glass substrate, e.g. by inside-, modified-, plasma-, or plasma modified- chemical vapour deposition [ICVD, MCVD, PCVD, PMCVD], i.e. by thin layer coating on the inside or outside of a glass tube or on a glass rod
- C03B37/01853—Thermal after-treatment of preforms, e.g. dehydrating, consolidating, sintering
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- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Physics & Mathematics (AREA)
- General Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Thermal Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Furnace Details (AREA)
- Muffle Furnaces And Rotary Kilns (AREA)
Abstract
The invention provides mother core rod heat-preserving and degassing equipment with expanded energy production, which comprises an upper tower, a lower tower, a hanging component and a heating furnace component, wherein the upper tower is fixedly arranged on the lower tower through bolts, the hanging component is arranged on a hanging support plate of the upper tower, and the heating furnace component is arranged in the lower tower; the detachable setting of female plug is on suspension part, and suspension part sets up in suspension backup pad, is equipped with parallel and vertical heating furnace part in the lower pylon, and heating furnace part is located down the pylon, and the lower pylon up end is equipped with the mouth of feeding in the stove, is provided with position adjustment mechanism on the mouth of feeding in the stove, and the upper end of the stove core pipe in the heating furnace part is placed on position adjustment mechanism's stove core pipe backup pad through the flange, and female plug gets into the heat preservation degasification in the stove core pipe under suspension part's drive. The invention expands the heat preservation and degassing process of the mother core rod, greatly improves the productivity of equipment, reduces the consumption of electric energy, and reduces the labor intensity of production staff.
Description
Technical Field
The invention belongs to the technical field of optical fiber preform production, and particularly relates to mother core rod heat preservation and degassing equipment with enlarged productivity.
Background
The manufacturing of the optical fiber preform can be realized by a total synthesis process method, namely a VAD+OVD combined production process, wherein the VAD process mainly produces a core rod, an outer cladding layer is deposited on the surface of the core rod through the OVD process, so that the optical fiber preform is produced efficiently, and the mother core rod produced through VAD deposition sintering needs to be subjected to a heat preservation and degassing process before the stretching process, so that the residual gas and thermal stress in the mother core rod are mainly eliminated, and the defects of cracks, bubbles and the like of the core layer during the cutting and the stretching processes are prevented; the existing quartz glass product high-efficiency annealing equipment adopts a horizontal structure, the cavity opening of the equipment is large, the heat preservation effect is poor, the energy consumption is high, the equipment is easy to deform and age after long-time use, the mother core rod is inconvenient to withdraw, and the automation degree of the equipment is low; the existing core rod heat preservation and degasification furnace is basically a furnace which can degasify only 1 mother core rod at a time, but the diameter size of the mother core rod is not large and is generally not more than phi 100mm, so that only 1 mother core rod is degasified at a time, the productivity is not high, and the whole energy consumption is increased. Therefore, the development and manufacture of a mother core rod heat-preserving degassing device with the expanded productivity are necessary and important.
Disclosure of Invention
In view of the above, the invention aims to provide a mother core rod heat-preserving and degassing device with enlarged productivity, which expands the heat-preserving and degassing process of the mother core rod, greatly improves the productivity of the device, reduces the consumption of electric energy and reduces the labor intensity of production staff.
In order to achieve the above purpose, the technical scheme of the invention is realized as follows:
the mother core rod heat-preserving and degassing equipment with the enlarged productivity comprises an upper tower, a lower tower, a plurality of hanging components and a plurality of heating furnace components, wherein the lower end of the upper tower is fixedly arranged on the lower tower through bolts, the hanging components are arranged on a hanging support plate of the upper tower, and the heating furnace components are arranged in the lower tower;
the detachable setting of female plug is on hanging the part, and hanging the part and ascending and decline along vertical direction on last pylon through hanging the backup pad, is equipped with parallel and vertical heating furnace part in the lower pylon in the position relative with hanging the part, and heating furnace part is located down the pylon, and lower pylon up end is equipped with into the stove mouth, is provided with position adjustment mechanism on the mouth of intaking, and the upper end of the stove core pipe in the heating furnace part is placed on position adjustment mechanism's stove core pipe backup pad through the flange, and female plug gets into in the stove core pipe under hanging the drive of part keeps warm and degasification.
Further, go up the pylon and include pylon support, gear motor, ball screw, guiding axle and hang the backup pad, ball screw vertical direction sets up in last pylon support, and ball screw is driven by the gear motor that the upper end set up and rotates, and ball screw both sides respectively are equipped with a guiding axle, hang backup pad perpendicular to ball screw, are provided with connecting hole and the guiding hole that link up from top to bottom in the backup pad that hangs, hang the backup pad and be connected with the screw through the connecting hole, and the guiding axle passes the guiding hole, still is provided with the mounting hole in the backup pad that hangs.
Further, the upper end and the lower end of one side of the ball screw are respectively provided with a limit switch and a speed reducing switch; the upper end from bottom to top has set gradually last speed-reducing switch, limit switch, secondary protection on limit switch on once, and lower extreme from the top down has set gradually under speed-reducing switch, limit switch, secondary protection limit switch down, goes up speed-reducing switch and links to each other with gear motor down, limit switch, secondary protection on once, limit switch, secondary protection limit switch down, limit switch all link to each other with the controller under the secondary protection, the controller links to each other with gear motor down.
Further, the suspension component comprises a suspension chuck, a heat-insulating cover, a quartz cover plate, a quartz heat-insulating plate and a quartz hanging plate which are sequentially fixed on the mounting shaft from top to bottom, a plurality of suspension holes are distributed on the quartz hanging plate, rod hanging pins are arranged between the suspension holes, a mother core rod is suspended on the suspension component through the rod hanging pins, and the upper end of the suspension chuck penetrates through the mounting holes in the suspension support plate and is suspended on the suspension support plate.
Further, a quartz ring is arranged between the quartz cover plate and the quartz heat insulation plate, the radius of the quartz cover plate is larger than that of the quartz heat insulation plate and the quartz hanging plate, and the quartz cover plate covers the upper end of the furnace core tube.
Further, down the pylon includes down the pylon support and sets up the position adjustment mechanism on advancing the stove mouth, advance fixedly on the stove mouth and be provided with the mounting panel, position adjustment mechanism sets up on the mounting panel, position adjustment mechanism includes X axle regulating plate, Y axle regulating plate, Z axle regulating plate, stove core pipe backup pad from bottom to top in proper order, the mounting panel, X axle regulating plate, Y axle regulating plate, Z axle regulating plate become the echelonment that diminishes gradually from bottom to top, and from top to bottom in proper order bolted connection, the fixed setting of stove core pipe backup pad is on Z axle regulating plate, open in the stove core pipe backup pad has and places the hole, the upper end of stove core pipe is through flange block on placing the hole.
Further, the both sides along the X axle of X axle regulating plate are provided with the slotted hole of a plurality of X axle directions, be provided with the bolt in the slotted hole of X axle direction and realize being connected of X axle regulating plate and mounting panel, be provided with the slotted hole of a plurality of Y axle directions on the Y axle regulating plate and along the both sides of Y axle, be provided with the bolt in the slotted hole of Y axle direction and realize being connected of Y axle regulating plate and X axle regulating plate, four angle departments of Z axle regulating plate all are provided with the bolt hole on the Z axle, be equipped with the bolt hole under the Z axle on the Y axle regulating plate that the Z axle bolt hole corresponds, the bolt hole passes through Z axle adjusting bolt connection under Z axle on the Z axle bolt hole and the Z axle, and adjust the horizontal position of Z axle regulating plate.
Further, the mounting plate and the X-axis adjusting plate are respectively provided with an X-axis adjusting bolt fixing plate, the two X-axis adjusting bolt fixing plates are connected through an X-axis adjusting bolt along the X-axis direction, the X-axis adjusting plate and the Y-axis adjusting plate are respectively provided with a Y-axis adjusting bolt fixing plate, and the two Y-axis adjusting bolt fixing plates are connected through a Y-axis adjusting bolt along the Y-axis direction.
Further, the heating furnace part comprises a furnace body with a cavity inside, a furnace core tube is arranged in the cavity, and the furnace body is sequentially divided into an upper furnace body, a middle furnace body and a lower furnace body from top to bottom.
Further, a furnace core tube cover is arranged on the placement hole, and a protective cover plate is arranged on the outer side of the position adjusting mechanism.
Compared with the prior art, the mother core rod heat preservation and degassing equipment with the enlarged productivity has the following advantages:
the mother core rod heat-preserving and degassing equipment with enlarged productivity can simultaneously preserve heat and degas a plurality of mother core rods, greatly improves the productivity of the equipment, reduces the consumption of electric energy, and reduces the labor intensity of production staff; the mother core rod is hung on the quartz hanging plate, the quartz hanging plate is driven by the ball screw and the gear motor to move, the whole equipment is simple to assemble, easy to detach and convenient to maintain, a limit switch, a speed reducing switch and a controller are further arranged, production staff only need to hang the mother core rod on the quartz hanging plate, the heat preservation and degassing time and the degassing process temperature are set, a rod inlet button is pressed, after the degassing time is up, the equipment has an audible and visual alarm system, the lifting rod of production staff is promoted, and the failure rate of the equipment is reduced.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention. In the drawings:
FIG. 1 is a schematic perspective view of a mother mandrel thermal insulation degasification apparatus with increased capacity according to an embodiment of the present invention;
FIG. 2 is a front view of a mother mandrel thermal insulation degasification apparatus with increased capacity according to an embodiment of the present invention;
FIG. 3 is a rear view of a parent mandrel thermal insulation degasification apparatus with increased capacity according to an embodiment of the present invention;
FIG. 4 is a schematic view of a furnace core pipe position adjusting mechanism of a mother core rod heat preservation and degassing device with increased productivity according to an embodiment of the invention;
FIG. 5 is a schematic view showing the structure of a suspension member of a mother mandrel thermal insulation degasification apparatus with increased productivity according to an embodiment of the present invention.
Reference numerals illustrate:
1-upper tower, 2-lower tower, 3-heating furnace component, 4-hanging component, 101-upper tower bracket, 102-gear motor, 103-ball screw, 104-guide shaft, 105-coupler, 1061-primary protection upper limit switch, 1062-secondary protection upper limit switch, 1063-primary protection lower limit switch, 1604-secondary protection lower limit switch, 1701-upper speed reducing switch, 1702-lower speed reducing switch, 108-screw insulation board, 109-hanging support plate, 201-lower tower bracket, 202-X-axis adjusting plate, 203-Y-axis adjusting plate, 204-Z-axis adjusting plate, 205-furnace core tube support plate 206-X axis adjusting bolt, 207-X axis adjusting bolt fixing plate, 208-Y axis adjusting bolt, 209-Y axis adjusting bolt fixing plate, 210-Z axis adjusting bolt, 211-Z axis adjusting bolt locking nut, 212-furnace core tube cover, 213-protective cover plate, 301-upper furnace body, 302-middle furnace body, 303-lower furnace body, 304-top insulating brick, 305-bottom insulating brick, 306-furnace core tube, 401-suspension chuck, 402-hex head bolt, 403-quartz hanging plate, 404-insulating cover, 405-quartz cover plate, 406-quartz ring, 407-quartz insulating plate, 408-hanging rod pin, 409-female core rod.
Detailed Description
It should be noted that, without conflict, the embodiments of the present invention and features of the embodiments may be combined with each other.
In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first", "a second", etc. may explicitly or implicitly include one or more such feature. In the description of the present invention, unless otherwise indicated, the meaning of "a plurality" is two or more.
In the description of the present invention, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art in a specific case.
The invention will be described in detail below with reference to the drawings in connection with embodiments.
As shown in fig. 1-5, the mother core rod heat-preserving and degassing equipment with enlarged productivity comprises an upper tower 1, a lower tower 2, three groups of hanging components 4 and three groups of heating furnace components 3, wherein the lower end of the upper tower 1 is fixedly arranged on the lower tower 2 through an inner hexagon bolt, the hanging components 4 are arranged on a hanging support plate 109 of the upper tower 1, and the heating furnace components 3 are arranged in the lower tower 2;
the mother core rod 409 is detachably arranged on the suspension component 4, the suspension component 4 ascends and descends on the upper tower 1 along the vertical direction through the suspension supporting plate 109, the parallel and vertical heating furnace component 3 is arranged at the position opposite to the suspension component 4 in the lower tower 2, the heating furnace component 3 is positioned in the lower tower 2, the upper end surface of the lower tower 2 is provided with a furnace inlet, the furnace inlet is provided with a position adjusting mechanism, the upper end of the furnace core tube 306 in the heating furnace component 3 is placed on the furnace core tube supporting plate 205 of the position adjusting mechanism through a flange, and the mother core rod 409 enters the furnace core tube 306 to be subjected to heat preservation and degassing under the driving of the suspension component 4.
The position adjustment mechanism can adjust the concentricity and levelness of the core tube 306.
The upper tower 1 comprises an upper tower bracket 101, a gear motor 102, a ball screw 103, a guide shaft 104 and a suspension support plate 109, wherein the ball screw 103 is arranged in the upper tower bracket 101 in the vertical direction, the ball screw 103 is driven to rotate by the gear motor 102 arranged at the upper end, a coupler 105 is further arranged between the ball screw 103 and the gear motor 102, the two sides of the ball screw 103 are respectively provided with the guide shaft 104, the suspension support plate 109 is perpendicular to the ball screw 103, the suspension support plate 109 is provided with a connecting hole and a guide hole which are vertically communicated, the suspension support plate 109 is connected with a screw through the connecting hole, the guide shaft 104 penetrates through the guide hole, and the suspension support plate 109 is further provided with a mounting hole.
The upper tower bracket 101 is constructed by adopting a light and attractive aluminum profile.
The upper end and the lower end of one side of the ball screw 103 are respectively provided with a limit switch and a speed reduction switch; the upper end has set gradually from bottom to top and has gone up speed reducing switch 1071, limit switch 1061, limit switch 1062 on the secondary protection on the primary protection, lower extreme from the top down has set gradually limit switch 1072 down, limit switch 1063 under the primary protection, limit switch 1064 under the secondary protection, go up speed reducing switch 1071 and limit switch 1072 link to each other with gear motor 102 down, limit switch 1061 on the primary protection, limit switch 1062 on the secondary protection, limit switch 1063 under the primary protection, limit switch 1064 all links to each other with the controller under the secondary protection, the controller links to each other with gear motor 102.
The suspension component 4 comprises a suspension chuck 401, a heat-insulating cover 404, a quartz cover plate 405, a quartz heat-insulating plate 407 and a quartz hanging plate 403 which are sequentially fixed on a mounting shaft from top to bottom, a plurality of suspension holes are distributed on the quartz hanging plate 403, a suspension rod pin 408 is arranged between the suspension holes, a mother core rod 409 is suspended on the suspension component 4 through the suspension rod pin 408, and the upper end of the suspension chuck 401 passes through the mounting hole on the suspension support plate 109 and is suspended on the suspension support plate 109. The quartz hanging plate 403 is provided with 3 hanging holes distributed at 120 degrees, so that 3 mother core rods 409 can be hung conveniently at the same time, and concentricity of the mother core rods 409 relative to the furnace core tube 306 is ensured. A screw insulation board 108 is provided between the suspension member 4 and the ball screw 103, the screw insulation board 108 is parallel to the ball screw 103, and the screw insulation board 108 passes through the suspension support board 109.
The suspension cartridge 401 is connected to the mounting shaft bracket by a hex head bolt 402.
A quartz ring 406 is further disposed between the quartz cover plate 405 and the quartz heat insulation plate 407, the radius of the quartz cover plate 405 is larger than the radius of the quartz heat insulation plate 407 and the radius of the quartz hanging plate 403, and the quartz cover plate 405 covers the upper end of the furnace core tube 306. When the heat preservation and degassing process is carried out, the quartz heat insulation plate 407 enters the furnace core tube 306 along with the quartz hanging plate 403, a part of heat is prevented from radiating outwards, and the quartz ring 406 separates the quartz cover plate 405 from the quartz heat insulation plate 407, so that the quartz cover plate and the quartz heat insulation plate are prevented from being mutually knocked when moving up and down.
The lower tower 2 comprises a lower tower bracket 201 and a position adjusting mechanism arranged on a furnace inlet, wherein a mounting plate is fixedly arranged on the furnace inlet, the position adjusting mechanism is arranged on the mounting plate and sequentially comprises an X-axis adjusting plate 202, a Y-axis adjusting plate 203, a Z-axis adjusting plate 204 and a furnace core tube supporting plate 205 from bottom to top, the mounting plate, the X-axis adjusting plate 202, the Y-axis adjusting plate 203 and the Z-axis adjusting plate 204 are gradually reduced in a step shape from bottom to top, and are sequentially connected through bolts from top to bottom, the furnace core tube supporting plate 205 is fixedly arranged on the Z-axis adjusting plate 204, a placing hole is formed in the furnace core tube supporting plate 205, and the upper end of the furnace core tube 306 is clamped on the placing hole through a flange.
The mounting plate, the X-axis adjusting plate 202, the Y-axis adjusting plate 203, the Z-axis adjusting plate 204 and the furnace core tube supporting plate 205 are all frame structures with a hole in the middle. The mounting plate, the X-axis adjusting plate 202, the Y-axis adjusting plate 203, the Z-axis adjusting plate 204 and the furnace core tube supporting plate 205 are all rectangular, and the sizes of the mounting plate, the X-axis adjusting plate, the Y-axis adjusting plate, the Z-axis adjusting plate and the furnace core tube supporting plate are gradually reduced from bottom to top.
The lower tower bracket 201 is formed by baking varnish on the surface of a Q235 square tube after welding.
The two sides of the X-axis adjusting plate 202 along the X-axis are provided with a plurality of oblong holes in the X-axis direction, the oblong holes in the X-axis direction are internally provided with bolts to realize the connection of the X-axis adjusting plate and the mounting plate, the two sides of the Y-axis adjusting plate 203 along the Y-axis are provided with a plurality of oblong holes in the Y-axis direction, the oblong holes in the Y-axis direction are internally provided with bolts to realize the connection of the Y-axis adjusting plate 203 and the X-axis adjusting plate 202, the four corners of the Z-axis adjusting plate 204 are respectively provided with a Z-axis upper bolt hole, the Y-axis adjusting plate 203 corresponding to the Z-axis bolt holes is provided with a Z-axis lower bolt hole, and the Z-axis upper bolt holes and the Z-axis lower bolt holes are connected through the Z-axis adjusting bolts 210 to adjust the horizontal position of the Z-axis adjusting plate 204. The portion of the Z-axis adjusting bolt 210 located at the upper portion of the Z-axis adjusting plate 204 is provided with a Z-axis adjusting bolt lock nut 211.
The mounting plate and the X-axis adjusting plate 202 are respectively provided with an X-axis adjusting bolt fixing plate 207, the two X-axis adjusting bolt fixing plates 207 are connected by an X-axis adjusting bolt 206 along the X-axis direction, the X-axis adjusting plate 202 and the Y-axis adjusting plate 203 are respectively provided with a Y-axis adjusting bolt fixing plate 209, and the two Y-axis adjusting bolt fixing plates 209 are connected by a Y-axis adjusting bolt 208 along the Y-axis direction.
When the concentricity of the furnace core tube 306 relative to the suspension member 4 is adjusted by taking the suspension member 4 as a reference, the X-axis adjusting bolt 206 is adjusted first to ensure that the X direction is in the center, the Y-axis adjusting bolt 208 is adjusted again to ensure that the Y direction is in the center, and finally, the Z-axis adjusting bolt 210 is adjusted by utilizing a level bar to ensure the levelness of the furnace core tube 306.
The heating furnace part 3 comprises a furnace body with a cavity inside, wherein a furnace core tube 306 is arranged in the cavity, and the furnace body is sequentially divided into an upper furnace body 301, a middle furnace body 302 and a lower furnace body 303 from top to bottom.
The top and bottom of the furnace body are respectively provided with a top insulating brick 304 and a bottom insulating brick 305. The upper furnace body 301, the middle furnace body 302 and the lower furnace body 303 are all made of high-temperature ceramic alumina polycrystal fiber materials with high-quality resistance wires embedded therein, the outer layer is made of 316 acid-resistant stainless steel sheet cylinders, and the three-section structure is designed, so that equipment is mainly convenient to install and maintain and the maintenance cost in the future is reduced, the furnace core pipe 306 is placed in the center of the furnace body, the upper end of the furnace core pipe 306 is connected with a flange, the flange is located on the furnace core pipe supporting plate 205 after assembly, and when the mother core pipe 409 is subjected to heat preservation and degassing, the mother core pipe is conveyed into the furnace core pipe 306 through the hanging component 4, the cleanliness of the degassing environment is ensured, and other metal impurities are prevented from penetrating into the mother core pipe 409.
The furnace core tube cover 212 is arranged on the placement hole, and the protective cover plate 213 is arranged on the outer side of the position adjusting mechanism. The quartz cover plate 405 finally covers the furnace core tube 306, so that heat dissipation is reduced, and the environmental temperature of the whole workshop is ensured.
The production staff starts the up button of the gear motor 102, the gear motor 102 drives the ball screw 103 to rotate at 60rpm, the suspension member 40 mounted on the suspension support plate 109 moves upward at 600mm/min, and after contacting the upper reduction switch 1071, the ball screw 103 rotates at 30rpm, at which time the suspension member 4 moves upward at 300mm/min until contacting the upper limit switch 1061, and then stops. At this time, production staff hangs 3 mother mandrels 409 prepared in advance into 3 hanging holes distributed at 120 ° on the quartz hanging plate 403, opens the furnace core tube cover 212 on the furnace core tube 306 after checking that there is no problem, sets the heating slope of the equipment at 10 ℃/min on the operation panel, sets the degassing process temperature at 1050 ℃, degassing time at 10h, and then starts the descent button of the gear motor 102. The speed reducing motor 102 rotates the ball screw 103 at 60rpm, and the suspension member 4 mounted on the suspension support plate 109 moves downward at 600 mm/min. Upon contact with the lower reduction switch 1072, the ball screw 103 rotates at 30rpm, at which time the suspension member 40 moves downward at a speed of 300mm/min until it comes to a stop upon contact with the lower limit switch 1063. At this time, all of the 3 mother plugs 409 suspended on the quartz hanging plate 403 were introduced into the furnace core tube 306, and a set thermal insulation and degassing process was performed. After the degassing time is finished, the equipment has audible and visual alarm prompt, production staff carries out alarm reset, then a speed reduction motor 102 is started to ascend a button, the speed reduction motor 102 drives a ball screw 103 to rotate at the speed of 60rpm, a hanging component 40 arranged on a hanging support plate 109 and 3 mother core rods 409 which have finished heat preservation and degassing move upwards at the speed of 600mm/min, and after the upper speed reduction switch 1071 is contacted, the ball screw 103 rotates at the speed of 30 rpm. At this time, the hanging member 40 moves upward at a speed of 300mm/min until it is stopped after contacting the upper limit switch 1061, and the 3 degassed mother mandrels 409 are naturally cooled, and then the furnace core tube cover 212 is covered, so that heat is prevented from being dissipated to the workshop and foreign matters from falling into the furnace core tube 306. Thus, the process of heat-insulating and degassing of 3 mother mandrels 409 by one furnace was completed.
The diameter of the mother core rod 409 is between phi 80mm and phi 95mm, the length is between 800mm and 1400mm, the standby process temperature of the furnace body is 700 ℃, and when the heat preservation and degassing process is carried out, the temperature rise rate of 10 ℃/min is increased to 1050 ℃, and the heat preservation and degassing time is 10 hours.
The foregoing description of the preferred embodiments of the invention is not intended to be limiting, but rather is intended to cover all modifications, equivalents, alternatives, and improvements that fall within the spirit and scope of the invention.
Claims (7)
1. The mother core rod heat-preserving and degassing equipment for expanding productivity is characterized by comprising an upper tower (1), a lower tower (2), a plurality of hanging components (4) and a plurality of heating furnace components (3), wherein the lower end of the upper tower (1) is fixedly arranged on the lower tower (2) through bolts, the hanging components (4) are arranged on a hanging support plate (109) of the upper tower (1), and the heating furnace components (3) are arranged in the lower tower (2); the heating furnace component (3) comprises a furnace body with a cavity inside, a furnace core tube (306) is arranged in the cavity, and the furnace body is sequentially divided into an upper furnace body (301), a middle furnace body (302) and a lower furnace body (303) from top to bottom;
the mother core rod (409) is detachably arranged on the hanging component (4), the hanging component (4) ascends and descends on the upper tower (1) along the vertical direction through the hanging support plate (109), a parallel and vertical heating furnace component (3) is arranged at a position opposite to the hanging component (4) in the lower tower (2), the heating furnace component (3) is positioned in the lower tower (2), a furnace inlet is arranged on the upper end face of the lower tower (2), a position adjusting mechanism is arranged on the furnace inlet, the upper end of a furnace core tube (306) in the heating furnace component (3) is placed on a furnace core tube support plate (205) of the position adjusting mechanism through a flange, and the mother core rod (409) enters the furnace core tube (306) to be subjected to heat preservation and degassing under the driving of the hanging component (4);
the upper tower (1) comprises an upper tower bracket (101), a speed reducing motor (102), a ball screw (103), a guide shaft (104) and a suspension support plate (109), wherein the ball screw (103) is arranged in the upper tower bracket (101) in the vertical direction, the ball screw (103) is driven to rotate by the speed reducing motor (102) arranged at the upper end, the two sides of the ball screw (103) are respectively provided with the guide shaft (104), the suspension support plate (109) is perpendicular to the ball screw (103), the suspension support plate (109) is provided with a connecting hole and a guide hole which are vertically communicated, the suspension support plate (109) is connected with a screw through the connecting hole, the guide shaft (104) penetrates through the guide hole, and the suspension support plate (109) is also provided with a mounting hole;
the hanging component (4) comprises a hanging chuck (401), a heat-insulating cover (404), a quartz cover plate (405), a quartz heat-insulating plate (407) and a quartz hanging plate (403) which are sequentially fixed on an installation shaft from top to bottom, a plurality of hanging holes are distributed on the quartz hanging plate (403), hanging rod pins (408) are arranged between the hanging holes, a mother core rod (409) is hung on the hanging component (4) through the hanging rod pins (408), and the upper end of the hanging chuck (401) penetrates through the installation holes on the hanging support plate (109) and is hung on the hanging support plate (109).
2. The mother core rod heat preservation and degasification device with enlarged productivity according to claim 1, wherein the upper end and the lower end of one side of the ball screw (103) are provided with a limit switch and a speed reduction switch; the upper end has set gradually speed reducing switch (1071), limit switch (1061) on the primary protection, limit switch (1062) on the secondary protection, lower extreme from the top down has set gradually under speed reducing switch (1072), limit switch (1063) under the primary protection, limit switch (1064) under the secondary protection, go up speed reducing switch (1071) and limit switch (1072) link to each other with gear motor (102) down, limit switch (1061) on the primary protection, limit switch (1062) on the secondary protection, limit switch (1063) under the primary protection, limit switch (1064) all link to each other with the controller under the secondary protection, the controller links to each other with gear motor (102).
3. The heat-preserving and degassing device for the mother core rod with the enlarged productivity according to claim 1, wherein a quartz ring (406) is further arranged between the quartz cover plate (405) and the quartz heat-insulating plate (407), the radius of the quartz cover plate (405) is larger than the radius of the quartz heat-insulating plate (407) and the quartz hanging plate (403), and the quartz cover plate (405) covers the upper end of the furnace core tube (306).
4. The mother core rod heat preservation and degasification equipment with enlarged productivity according to claim 1, wherein the lower tower (2) comprises a lower tower bracket (201) and a position adjusting mechanism arranged on a furnace inlet, a mounting plate is fixedly arranged on the furnace inlet, the position adjusting mechanism is arranged on the mounting plate and sequentially comprises an X-axis adjusting plate (202), a Y-axis adjusting plate (203), a Z-axis adjusting plate (204) and a furnace core tube supporting plate (205) from bottom to top, the mounting plate, the X-axis adjusting plate (202), the Y-axis adjusting plate (203) and the Z-axis adjusting plate (204) are gradually reduced in a step shape from bottom to top and sequentially connected through bolts, the furnace core tube supporting plate (205) is fixedly arranged on the Z-axis adjusting plate (204), a placing hole is formed in the furnace core tube supporting plate (205), and the upper end of a furnace core tube (306) is clamped on the placing hole through a flange.
5. The heat-insulating degassing device for the mother core rod with enlarged productivity according to claim 4, wherein a plurality of oblong holes in the X axis direction are formed in two sides of the X axis adjusting plate (202) along the X axis, bolts are arranged in the oblong holes in the X axis direction to realize connection of the X axis adjusting plate and the mounting plate, a plurality of oblong holes in the Y axis direction are formed in two sides of the Y axis adjusting plate (203), bolts are arranged in the oblong holes in the Y axis direction to realize connection of the Y axis adjusting plate (203) and the X axis adjusting plate (202), four corners of the Z axis adjusting plate (204) are respectively provided with a Z axis upper bolt hole, the Y axis adjusting plate (203) corresponding to the Z axis bolt holes is provided with a Z axis lower bolt hole, and the Z axis upper bolt holes and the Z axis lower bolt holes are connected through Z axis adjusting bolts (210) to adjust the horizontal position of the Z axis adjusting plate (204).
6. The heat-insulating degassing device for the mother core rod with the enlarged productivity according to claim 5, wherein the mounting plate and the X-axis adjusting plate (202) are respectively provided with an X-axis adjusting bolt fixing plate (207), the two X-axis adjusting bolt fixing plates (207) are connected through an X-axis adjusting bolt (206) along the X-axis direction, the X-axis adjusting plate (202) and the Y-axis adjusting plate (203) are respectively provided with a Y-axis adjusting bolt fixing plate (209), and the two Y-axis adjusting bolt fixing plates (209) are connected through a Y-axis adjusting bolt (208) along the Y-axis direction.
7. The mother rod heat preservation and degasification apparatus with increased productivity according to claim 4, wherein the furnace core tube cover (212) is arranged on the placing hole, and the protective cover plate (213) is arranged outside the position adjusting mechanism.
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| CN109111097A (en) * | 2018-09-28 | 2019-01-01 | 广州宏晟光电科技股份有限公司 | A kind of glass optical fiber drawing furnace |
| CN110818238A (en) * | 2019-12-11 | 2020-02-21 | 江苏通鼎光棒有限公司 | Annealing device and method for improving stress of preform |
| CN114349328A (en) * | 2022-01-18 | 2022-04-15 | 江苏亨通光导新材料有限公司 | Simple section structure polarization maintaining parent metal and efficient preparation method thereof |
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